CHITON. 
Puarte VII. 
Species 33. (Mus. Cuming.) 
CHITON LINEATUS., Chit. testd ovatd, valvis undique levi- 
bus, areis lateralibus vix elevatis ; aureo-lutescente, ad 
latera lineis rufis albimarginatis, longitudinaliter obli- 
quis, subundulatis, pulcherrime virgatd, summitate 
umbonali macula rufa trigond hic illic pictd ; ligamento 
corneo, translucido. 
THE LINEATED Curron. Shell ovate, valves smooth 
throughout, lateral areas scarcely raised ; orange 
yellow, beautifully striped at the sides with red white- 
edged lines longitudinally obliquely ranged and a little 
waved, umbonal eminence painted here and there 
with a triangular red blotch; ligament horny, trans- 
parent. 
Woop, General Conchology, p. 15. pl. 2. f. 4 and 5. 
Hab. Sitka, North California, Hinds. 
An exquisitely beautiful species, easily recognised by the 
accompanying figure showing its very peculiar style of 
painting. 
Species 34. (Fig. a, 6, and c. Mus. Cuming.) 
Cuiron LiNgoLatus. Chit. testé oblongo-ovatd, anticé 
attenuatd, valvis terminalibus ceterarum areisque late- 
ralibus minutissimé granulatis, centralibus levibus ; 
luteo-fulvd, lineis undulatis rufo-castaneis concentricis 
regulariter picté, maculis rufo-castaneis pluribus aut 
minoribus ; ligamento corneo, translucido. 
THE FINELY-LINEATED Curiron. Shell oblong-ovate, 
somewhat attenuated anteriorly, terminal valves and 
lateral areas of the rest very minutely granulated, 
central areas smooth; yellowish-fulvous, regularly 
painted with reddish chesnut concentric waved lines, 
and more or less blotched with the same colour ; liga- 
ment horny, transparent. 
Frey, Zool. Journal, vol. ui. p. 204. pl. (supp.) 17. f.7. 
Hab. Valparaiso, Chili (in clefts of the rocks at low- 
water); Frembly, Cuming. 
The Chiton lineolatus was introduced by Mr. Frembly, 
with some anxiety as to the propriety of it being consi- 
dered a species distinct from C. elegans; and it is in truth 
a very questionable one. It was at one time thought to 
present a distinction, in having the lateral areas punctured 
instead of granulated, the dots impressed in place of being 
raised, but it is not so; and it only remains to determine 
whether its concentric lineated painting is of sufficient im- 
portance to constitute it a species. In taking a review of 
the genus I am inclined to think, that however variable 
the Chitons may be in colour, there is no great inconstancy 
in their style of painting; it is trne that this and one or 
two other species are more or less enveloped by a dark 
chesnut veil, but where the pattern is exposed to view the 
design is invariably permanent. 
Species 35. (Mus. Cuming.) 
CHiTon L&vIGatTUS. Chit. testd oblongo-ovata, valvis om- 
nibus levibus aut minutissime et creberrime puncturatis ; 
olivaced, medio lutescente, maculis plurimis nigris ob- 
longis variegatd, valvis terminalibus ceterarum areisque 
lateralibus lineis subtilibus nigricantibus radiatis ; 
ligamento squamato-coriaceo, squamis parvis, olivaceo- 
virescente, maculis grandibus saturatioribus marmorato. 
THE smMootH Curton. Shell oblong-ovate, all the valves 
smooth or very minutely and closely punctured ; 
olive, yellowish in the middle, variegated with several 
oblong black blotches, terminal valves and lateral 
areas of the rest rayed with fine blackish lines ; hga- 
ment squamately coriaceous, scales small, olive-green, 
marbled with large spots of a darker hue. 
SowErBy, Pro. Zool. Soc., 1832. 
Hab. Guaymas, Bay of California (under stones); Ealing, 
H.M.S. Sapphire. 
The sculpture of this species is precisely similar to that 
of the C. articulatus, and it differs little in colour and de- 
sign, except in having a series of fine black rays on the 
terminal and lateral valves, whilst the articulated pattern 
along the anterior edge of the valves of that species is 
wanting in this; in form it is more oblong, and this 
variation appears to be permanent. 
Species 36. (Mus. Cuming.) 
Cutton revs. Chit. testé oblongo-ovati, medio an- 
gulato-elevatd, valvis undique rudé impresso-striatis, 
summitate umbonali levi; sordidé viridi; ligamento 
granoso-coriaceo. 
THe copppr Curron. Shell oblong-ovate, angularly 
raised in the middle, valves rudely impressly striated 
throughout, umbonal eminence smooth; dull green ; 
ligament granosely coriaceous. 
Hab. New Zealand; Karl. 
February, 1847. 
